<div dir="ltr"><div><div><div><div><div>Dear A.Anandaraman, <br><br></div>EPW is only parallelized over k-points. You therefore need to run it with -npool. In your case it would be something like:<br><br></div>mpirun -np 4 XXX/epw.x -npool 4 < input_file.<br><br></div>Please note that the version 4 of EPW is now available in the QE 5.4.0 package. <br><br></div>Best, <br><br></div>Samuel<br><div><div><div><br><div><br></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 25 April 2016 at 11:27, Anandaraman Raman <span dir="ltr"><<a href="mailto:rmkaadhi@gmail.com" target="_blank">rmkaadhi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Dear Sir,</div><div><br></div><div>I installed espresso 4.0.3 with EPW3.0, When is am running EPW with 4 cores. I am encountering the following error.</div><div><br></div><div>Can any one suggest me the changes I want to do to run it in parallel?</div><div><br></div><div><br></div><div>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div>     from setphases_wrap : error #         1</div><div>     only one proc per pool</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div><br></div><div>     stopping ...</div><div><br></div><div><br></div><div><br></div><div>Regards</div><div>A.Anandaraman</div><span class="HOEnZb"><font color="#888888"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">"Religion is just a set of symbols. It is being hijacked for political and monetary gains."<img src="https://docs.google.com/uc?export=download&id=0B3YLWMTqajEpME9iMVc3QXNObFE&revid=0B3YLWMTqajEpWUVZMFJ0RndHOXhIYXZKbm5tZWwxV0tsZlcwPQ"></div></div></div></div></div></div>
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    Dr. Samuel Poncé  
    Department of Materials
    University of Oxford
    Parks Road
    Oxford OX1 3PH, UK

    Phone: +44 1865 612789<br>    email: <a href="mailto:samuel.ponce@materials.ox.ac.uk" target="_blank">samuel.ponce@materials.ox.ac.uk</a> <a href="mailto:fabio.caruso@materials.ox.ac.uk" target="_blank"></a>
    web: <a href="http://giustino.materials.ox.ac.uk/index.php/Site/SamuelPonc%e9" target="_blank">http://giustino.materials.ox.ac.uk/index.php/Site/SamuelPonc%e9</a>
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